/*
 * Copyright (C) 2008 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.demo.notepad3;

import android.app.Activity;
import android.database.Cursor;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class NoteEdit extends Activity {

	private EditText mTitleText;
	private EditText mBodyText;
	private Long mRowId;
	private NotesDbAdapter mDbHelper;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		mDbHelper = new NotesDbAdapter(this);
		mDbHelper.open();
		setContentView(R.layout.note_edit);
		setTitle(R.string.edit_note);

		mTitleText = (EditText) findViewById(R.id.title);
		mBodyText = (EditText) findViewById(R.id.body);

		Button confirmButton = (Button) findViewById(R.id.confirm);

		mRowId = (savedInstanceState == null) ? null
				: (Long) savedInstanceState
						.getSerializable(NotesDbAdapter.KEY_ROWID);
		if (mRowId == null) {
			Bundle extras = getIntent().getExtras();
			mRowId = extras != null ? extras.getLong(NotesDbAdapter.KEY_ROWID)
					: null;
		}
		populateFields();

		confirmButton.setOnClickListener(new View.OnClickListener() {

			public void onClick(View view) {
				setResult(RESULT_OK);
				finish();
			}

		});
	}

	private void populateFields() {
		if (mRowId != null) {
			Cursor note = mDbHelper.fetchNote(mRowId);
			startManagingCursor(note);
			mTitleText.setText(note.getString(note
					.getColumnIndexOrThrow(NotesDbAdapter.KEY_TITLE)));
			mBodyText.setText(note.getString(note
					.getColumnIndexOrThrow(NotesDbAdapter.KEY_BODY)));
		}
	}

	@Override
	protected void onSaveInstanceState(Bundle outState) {
		super.onSaveInstanceState(outState);
		saveState();
		outState.putSerializable(NotesDbAdapter.KEY_ROWID, mRowId);
	}

	@Override
	protected void onPause() {
		super.onPause();
		saveState();
	}

	private void saveState() {
		String title = mTitleText.getText().toString();
		String body = mBodyText.getText().toString();

		if (mRowId == null) {
			long id = mDbHelper.createNote(title, body);
			if (id > 0) {
				mRowId = id;
			}
		} else {
			mDbHelper.updateNote(mRowId, title, body);
		}
	}

	@Override
	protected void onResume() {
		super.onResume();
		populateFields();
	}
}
